{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93539", "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "state": "PUBLISHED", "assignerShortName": "suse", "dateReserved": "2026-09-18T09:08:10.294Z", "datePublished": "2026-09-28T14:19:55.071Z", "dateUpdated": "2026-09-28T14:19:55.071Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "shortName": "suse", "dateUpdated": "2026-09-28T14:19:55.071Z"}, "title": "Unauthenticated GitRepo Spec Mutation via Fleet Git Webhook Receiver", "datePublic": "2026-09-28T14:16:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-306", "description": "CWE-306 Missing authentication for critical function", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-176", "descriptions": [{"lang": "en", "value": "CAPEC-176 Configuration/Environment Manipulation"}]}], "affected": [{"vendor": "SUSE", "product": "Rancher", "packageName": "Fleet", "repo": "https://github.com/rancher/fleet/", "versions": [{"status": "affected", "version": "0.16.0", "lessThan": "0.16.2", "versionType": "semver"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"operator": "OR", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.16.0", "versionEndExcluding": "0.16.2"}]}]}], "descriptions": [{"lang": "en", "value": "A vulnerability was discovered in Fleet's Git webhook receiver (the gitjob webhook service). When a webhook secret is not configured, incoming webhook requests are accepted without verification, and processing a request can change the spec.pollingInterval field of a matching GitRepo resource in any namespace. A caller with network access to the webhook service and no Kubernetes credentials can therefore alter GitRepo configuration outside\n\nthe namespaces they are authorized for.\u00a0 This only affects SUSE Rancher Fleet 0.16 before 0.16.2, older versions are not affected.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A vulnerability was discovered in Fleet's Git webhook receiver (the <code>gitjob</code> webhook service). When a webhook secret is not configured, incoming webhook requests are accepted without verification, and processing a request can change the <code>spec.pollingInterval</code> field of a matching <code>GitRepo</code> resource in any namespace. A caller with network access to the webhook service and no Kubernetes credentials can therefore alter <code>GitRepo</code> configuration outside<br>\nthe namespaces they are authorized for.&nbsp; This only affects SUSE Rancher Fleet 0.16 before 0.16.2, older versions are not affected."}]}], "references": [{"url": "https://github.com/rancher/fleet/security/advisories/GHSA-8vfv-33cg-g75q", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "LOW", "baseSeverity": "MEDIUM", "baseScore": 5.4, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L"}}], "credits": [{"lang": "en", "value": "https://github.com/Pig-Tail", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

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